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1. (WO2007109614) AMBIENT LIGHT ABSORBING SCREEN

Pub. No.:    WO/2007/109614    International Application No.:    PCT/US2007/064307
Publication Date: Fri Sep 28 01:59:59 CEST 2007 International Filing Date: Tue Mar 20 00:59:59 CET 2007
IPC: G03B 21/00
Applicants: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
NOVET, Thomas E.
SMITH, Gilbert G.
Inventors: NOVET, Thomas E.
SMITH, Gilbert G.
Title: AMBIENT LIGHT ABSORBING SCREEN
Abstract:
A projection screen (600) for receiving projector light (30) from a projector facing direction includes a substrate (502) having a plurality of features (504). Each of the features includes a reflective surface (504) oriented to the projector facing direction. Each of the reflective surfaces is curved in a first direction (510) to provide a desired horizontal viewing angle, and is curved in a second direction (504) to provide a desired vertical viewing angle.